/*
 * @Author: your name
 * @Date: 2021-02-10 19:30:01
 * @LastEditTime: 2021-02-10 19:31:01
 * @LastEditors: Please set LastEditors
 * @Description: In User Settings Edit
 * @FilePath: \demo_2021021001\include\bsp\at32f421\system_at32.h
 */
/**
  **************************************************************************
  * File   : system_at32f4xx.h
  * Version: V1.2.7
  * Date   : 2020-11-10
  * Brief  : CMSIS Cortex-M4 system header file.
  **************************************************************************
  */

/** @addtogroup CMSIS
  * @{
  */

/** @addtogroup at32f4xx_system
  * @{
  */

/**
  * @brief Define to prevent recursive inclusion
  */
#ifndef __SYSTEM_AT32F4XX_H
#define __SYSTEM_AT32F4XX_H

#ifdef __cplusplus
extern "C"
{
#endif

  /** @addtogroup AT32F4xx_System_Includes
  * @{
  */

  /**
  * @}
  */

  /** @addtogroup AT32F4xx_System_Exported_types
  * @{
  */

  extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */

/**
  * @}
  */

/** @addtogroup AT32F4xx_System_Exported_Constants
  * @{
  */

/**
  * @}
  */

/** @addtogroup AT32F4xx_System_Exported_Macros
  * @{
  */
#define HSE_STABLE_DELAY (5000u)
#define PLL_STABLE_DELAY (500u)
  /**
  * @}
  */

  /** @addtogroup AT32F4xx_System_Exported_Functions
  * @{
  */

  extern void SystemInit(void);
  extern void SystemCoreClockUpdate(void);
  /**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /*__SYSTEM_AT32F4XX_H */

/**
  * @}
  */

/**
  * @}
  */
